212201929 has 2 divisors, whose sum is σ = 212201930. Its totient is φ = 212201928.

The previous prime is 212201923. The next prime is 212201989. The reversal of 212201929 is 929102212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 60419529 = 12320^2 + 7773^2 .

It is a cyclic number.

It is not a de Polignac number, because 212201929 - 2¹⁵ = 212169161 is a prime.

It is equal to p_11716309 and since 212201929 and 11716309 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 212201897 and 212201906.

It is not a weakly prime, because it can be changed into another prime (212201923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100964 + 106100965.

It is an arithmetic number, because the mean of its divisors is an integer number (106100965).

Almost surely, 2^212201929 is an apocalyptic number.

It is an amenable number.

212201929 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201929 is an equidigital number, since it uses as much as digits as its factorization.

212201929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 212201929 is about 14567.1523984614. The cubic root of 212201929 is about 596.4624515008.

The spelling of 212201929 in words is "two hundred twelve million, two hundred one thousand, nine hundred twenty-nine".